Roller-bearing.



UNITED s'rnrns referir OFFICE.

HUBERT A. MYERS, 0F TGLEDO, OHIO, ASSIGNOB OF ONE-HALF TO ARTHUR S. HICKOK, 0F TOLEDU, OHIU..

ROLLER-BEARING.

Application led March 11,

Y 0 all whom t may concern Be it known that I, HUBERT A. MYEns, a citizen of the United States of America, and resident of Toledo, Lucas county, Chio, have invented a certain 'new and useful Improve ment in Roller-Bearings, of which the following is specification.

My invention relates to bearings oi' the kind in 'which a helical sleeve or mer'nber is employed for tak-ing up wear, and is in the nature of an improvement on the bearings shown and claimed in my prior applications No. 660,133 and No. 681,355.

The object of my present invention is to prov-ide a construction and arrangement whereby the wear is automatically taken up by springs which bear .against the end of the helical sleeve or member, end which keep the latter in working condition, whereby the bearing will not become loose, and is not liable to rattle, as-will hereinafter more `fully appear.

In the accompanying drawings-Figure l is alongitudinal section of a. .roller bearing embodying the. principles of my invention. Fig. 2 is a cross section on line 2--2 in Fig. 1. Fig. 31 isa cross section on line 3--3 in Fig. l. Fig. l is a side elevation of the helical sleeve or member, partly in section., by which the looseness is taken bearing becomes worn. i

As thus illustrated, my iiivention 'comi prises an axle'A having e sleeve B fixed thereon. This sleeve-hes. a piral bevel b, the con'voluti'ons of the spiral being formed integral andhaving a. spiral 'shoulder b1 at the inner edges thereof. The| outer yreduced end portion fb of said sleevis externally in the form of a spiral spring, 'is carried on the sleeve B, the inner surface of this member C being formed to fit the spirelouter surface of the sleeve B, whereby endwise movement of the member C will cause the same to .expand.

This, it will Abe seen, is because the sleeve B 'serves as 'a' series of wedges, causing the :convolutions of the member C tov expand.' ,"Always,' however, the convolutions of the.

member C are in tight engagement with each other, because they are made that way. The

Specification of Letters Patent.l

upwhen. thi' Patented Dec. 12, 1916. 19m. serial N0. 823,387.

wheel hub D is of any suitable character, and rollers E :ire interposed between said hub and the smooth and cylindrical outer surface of the helical sleeve C, said rollers being held in relative position by. rings e of any suitable Character. A nut F is screwed on to the end of the member B, and is provided with sockets f containing springs fl that beer against '.r ring or washer f2. Seid washer f2 bears ngainst'the end of the helical sleeve or member C, and consequently these springs f1 keep the sleeve o crowded tightly'agaiust the rollers E, thus automatically taking up wear. In other words, and when the surfaces of the rollers and the hub and sleeve surfaces upon which they tra-vel become worn, the springs press the member C forward, thus causing it to expand and take up the wear. But, it will be understood that this action is gradual, and that the weer is taken up instantly, as fast l as it occurs, whereby the bearingt never be comes loose and does not rattle. And by adsprings can be taken up from. time to time, thus positively holding Seid sleeve against endwise shift.

The hub is held against endwise displacement by a simple and effective arrangement, es follows: A rin Gr having a bevel g is screwed into the hub D, and a corresponding bevel g1 isformed onthe nut E,' these being enga-ged by the inner beveled surfacesg2 on the ends of the-rollers. Rings g"J and g* are screwed respectively into the elements F and Gr, and beveled to engage the outer surfaces of the rollers. In this way the end portions of the rollers are employed as elements of e thrust bearing to wise displacement of the whee hu'b. It is obvious, of course, that the element A may revent e11dbe a rotary shaft, and Athat .in such cese the element"4 .D will be stationary. In other wordslt'he helical resilient member C, which is prerably a steel spring,'may be carried on either the rotary or the stationafy element of a bearing.- In any event, however, the springs f1 .serve to-.eutomatically take up wear, as the helicalmembei-C is constantly subject to the pressure of these springs.

oneequently, and as stated, the wear is taken up as "hat as it oreurs, thereby pref; eluding,Y looaeness and rat-lle. The. helical member C is so tensioned, of colline, that it must he foreiblv adjusted enduise= in order to ea'use the. bevel ol the spiral to expand the convolutionl and take up wenn This reluctance ot' sa id member C to expand and take up wear is overcome by the eoilraaialion.ol' tl'iespringa j" with the angular engagement which the comolutions of said member havel with the Spiral bevel, no that the wear is automatik-.ally talcen up to prevent looaeness. (lf course, however. lla parts anl also adjusted to positively talee up (he wear. an soon as any occurs. thus keeping the. a id springs" practically always eonlpressed lo the full exteutvsro that they will always he iu ronditi'on 'natalie up slight wear and keep the parts perfectly tight and thus prevent rattle.

1. In a hearing, a resilient helieai member having a smoothwearing Suriaim. means` 'for engaging said surface, said means and surface having relative nmvemenl. au element having angular engagement with Aaid meuher, whereby endwise movement of the meniber changes the diameter thereof. tu tatie up wear relative. to said means, and a spring for pushing said men'iber eudwise, serving byexpansion thereof autouniticallvltu take up wear, said bearing.: having provisions for adjustment to take upsaid expansion, said spring and helical member opposing each other by their tenaion1 but the tension of thespring cooperating' with said angular Vengaement to overcome the reluetauee of said member to take up wear.

2. Ina bearing, lx resilient helical member having asliiooth wearing surface, means for engagg'ing.,1r said suraee,said means and surface having relativ movement, un element harinar angular engagement with said member, whereby endwiae movement of the member changes the .diameter thereof, to take up wear relative to said means. and a spring for pushing said member endwise, serving by expansion thereof automatieall \T to take up wear. said bearing havingr provisions for adjustment lo take up said expansion. said surface beine' eylindric. and said means including.r aiiti-lrietion rollersA havin,"xr parallel axes. -said spring and helical member opposing: each other by their tension, but the tension of the spring eoperatinj.: with said angular engagement to overcome the reluctance of said member to take up wear.

3. lu a bearing, a resilient helical member harinaIr a smooth wearing: Iairfare` meanafor engagingrsaid surface, said meaua'an-.l surl i'aee lia\'in, ,"relati\'e movement.. au element haviugrangular engagement with said member. whereby endwlee movement r l the memher changes -the diameter thereof. to tal-2e up wear relative to said means, and a springior puahini,r aaid member endwise, serving by expansion' thereof automatically tu take up wear, said bearing haring provisions for adjustment to talie up said expansion, 'Said having' a smooth wearing surface., means for engaging-said surface, said means and. surface having relative nmvement,- an element haring angular engagement with said memlier, vfluarelrv eudwise movement of the meInher changes the diameter thereof, to take lup wear relative to said means, and a spring for pushing: said member endwise, serving by expansion then-cot automatically to take n i wear. laid bearing having provisionafor a miniem to take up said expansion, a ring in rei-posed between said spring,r and member, and other springe engaging said ring, said springr and helical member opposing each other by their tension, but the. tension of the leprint; cooperating with said angular engagement to overconu: the reluctance of Saul.

member to take up wear. Y

5. In a bearing. a resilient helical member haring;r a .smooth wearing surface, means for engaging: said surface., said means and. sur'- Iaee harinar relative movement, an element 'having angularengagement with said member, whereby endwise movement of the member changes the diameter thereof, to take up wear relative to said means, and a spring for pushingr said member endwse, serving by expansion thereof automatically to take up wear, said bearing having provisions for. adjustment to take up Said expansion, said member. being formed with the couvolutions thereof in tight engagement with each other, whereby said surface is'praetically continu# ons and unbroken in el'iaraeter, said spring and helical member opposing each other by their tension. but the tension ofthe spring eoperating with said angular engagement Lo overcome the reluetanee of said member to take up wear.

(l. In a hearing, a resilient helical member ha ving a smooth wearing surfacefmeans for engaging said surface, said means and snrfaee. having,r relative movement, an element having angular engagement with sad'lnembei',I whereby eodwise movement of the mehr ber changes the diameter thereof, to take up wear relative to said means, anda spring for puehiirey said member endwise, Serving by expansion thereof autoimitieally totalce. un wear, said hearing having provisions for the tension of the spring coperating with Suid angular ongugomont to overcome the reluctance of said member t0 take up Wear.

Signed by me at Tolodo, Ohio, this 28th day of January 1914;.

HUBERT A. MYERS.

Witnesses:

ARCHIBALD H. HOOPER, JOHN DoUnLY. 

